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Science X / HIV's hidden history: New study reveals much deeper roots stretching back millions of years

Researchers used to think that HIV and its relatives were pretty recent things, maybe only a few hundred years old. But a growing body of evidence now suggests their history is far more ancient, with viruses closely related ...

13 hours ago
Science X / Curious people embrace richer experiences, but cognitive test scores tell a more complicated story

We often hear that a curious mind is a sharp mind, particularly as we age. According to scientists, persistent learners are often open to taking on new challenges and trying new activities. The idea is that engaging with ...

Jul 30, 2026
Science X / One long brisk walk may protect your brain from dementia and anxiety more than short walks put together

Exercise is well known for keeping the brain healthy, but does how we move matter as much as how much we move? In a recent study, researchers investigated whether sustained periods of physical activity offer greater long-term ...

Jul 29, 2026
Science X / Different flint, same toolmaking strategy: How Neanderthals adjusted their effort to get the same razor-sharp results

The Neanderthal toolkits found in two Ice Age caves near Le Moustier, in southwestern France, tell a surprising story. Even though the types of rock were very different—large, high-quality flint nodules at Le Moustier and ...

Jul 28, 2026
Science X / When darkness fell during the total solar eclipse, zoo animals responded in wildly different ways

Imagine a bright, sunny day suddenly turning dark as a solar eclipse sweeps across the sky. Even though humans have watched and recorded eclipses for thousands of years and now understand the science behind them, experiencing ...

Jul 27, 2026
Science X / Inside 530-million-year-old embryos, scientists uncover rare time-lapse of early animal growth

Think of a small fossil as the equivalent of a homemade video of prehistoric life. Fossils formed when sea organisms began their great proliferation more than half a billion years ago rarely contained anything but tough structures. ...

Jul 25, 2026
Science X / Beneath pale ash, a quantum microscope reveals hidden traces of Neanderthal fire use preserved for millennia

An ancient hearth at El Salt (Spain) is giving up its secrets—not with flames, but with physics. Scientists have already established that Neanderthals used to make fires at this site (spanning from 80,000–45,000 years ago), ...

Jul 24, 2026
Science X / Tiny tree snails make historic comeback 40 years after vanishing from the wild

After more than a decade of work to return captive-bred Partula snails to the forests of Moorea, scientists finally found the evidence they had been hoping for. In 2024, scientists evaluating a release site found the first ...

Jul 23, 2026
Science X / GenAI: Cognitive crutch or scaffold? Two offloading styles, two mental outcomes

It was in the year 2022 when students and working individuals began making use of generative AI tools such as ChatGPT for writing their essays or solving problems. The convenience of obtaining coherent text or some other ...

Jul 22, 2026
Science X / Rising seas could make yesterday's rare coastal floods tomorrow's routine disasters

Think of a tsunami that used to crash over a city once in a lifetime, but now comes crashing every year. Who is guilty? Coastal flooding results when a high tide coincides with a storm surge, waves, and an ocean surface that ...

Jul 21, 2026
Science X / This citrus‑scented tree oil kept mosquitoes at bay for nearly four hours

Mosquitoes have posed a threat to human beings since time immemorial. They not only disturb sleep by their incessant buzzing but have also been carriers of deadly diseases. In combating the transmission of diseases via mosquitoes, ...

Jul 18, 2026
Science X / This device pulls electricity from humid air using waste materials

Imagine what would happen if the source of your electricity was not the sun, wind, or water flow, but rather the moisture present in the air? The ability of moisture to provide energy has been well-known for a long time, ...

Jul 16, 2026